"Rats! You'll be lucky if you don't get worse," growled one of the auto thieves.
"We ought to throw 'em into the bay," added another.
"Yes, with a few big stones in each pocket to hold 'em down," came the response from a third.
"Shut up, you all talk too much," commanded Montrose. "Where is that rope you spoke of?"
He snatched a length of heavy cord from the man who handed it to him. Frank was turned roughly around and his arms thrust behind his back. In a moment his wrists were firmly tied. Joe received the same treatment. The boys were bound and helpless.
"Put 'em over in the corner," ordered Montrose.
The boys were pushed and jostled across the rocky floor and were made to sit down against the wall at the back of the cave. The big lamp was turned on them all this time and they could see the faces of none of their captors.
"This is a fine mess!" grumbled one of the men. "It ruins the whole game."
Montrose turned on him.
"We were going to clear out to-morrow anyway, weren't we?" he said. "We'll just have to work a little quicker, that's all. Instead of sending one car out to-night and the rest to-morrow night, we'll get busy and drive 'em all out right now."